Subject: for the list
Date: Wed, 20 Aug 2003 11:16:17 -0400 (EDT)
From: "W. Stephen Wilson"
To: dmd1@lehigh.edu
Don, for the list. Steve
List: When in Japan for the Nishida Conference at Kinosaki
we learned of the death of Sugawara. Some of his students
agreed to write an obituary for him. Sincerely, Steve
Steve, The following is a notice of the death of Sugawara we
talked about at Kinosaki, Japan. Kenshi
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It is with deep sorrow that we must inform you of the death of our
advisor Masahiro Sugawara. He passed away on July 23, 2003, at the age
of 75. A memorial service was held in the city of Hiroshima, Japan,
on July 25.
Sugawara Sensei has worked mainly on the theory of H-spaces as well
as the K-group and the J-group of lens spaces.
His career started at Okayama University as a research assistant in
1950. There he proved a theorem that a space X is to be an H-space if
and only if there exists a quasi-fibration, having X as fiber, such
that X is contractible in the total space.
Nine years later, he moved to Kyoto University to be an associate
professor. He extended the theorem he showed in Okayama to homotopy
associative H-spaces. Furthermore he introduced the notion of a group-
like space which is an H-space with homotopy associative multiplication
of infinite order, and showed that a space is group-like if and only if
it has the homotopy type of a loop space. This work has led to the A_n-
space by J. Stasheff and then the operad by P. May.
Until his retirement in 1991, he had been a professor at Hiroshima
University for 25 years. During the period, our Sensei had more than twenty
graduate students.
Professor Sugawara was a mentor to have shown us how to spend an
academic life. He had never said to students about annoyances of his
society. This shows us how honorable and independent he was. Everyone
who knew him will always remember his great contribution to the
mathematical society. We share in his family's loss.
Kouzou Tsukiyama
Mitsunori Imaoka
Yutaka Hemmi
Kenshi Ishiguro
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